Não informado. (1944). Public Health Economics. University of Michigan, School of Public Health.
Chicago-Zitierstil (17. Ausg.)Não informado. Public Health Economics. Ann Arbor, Mich: University of Michigan, School of Public Health, 1944.
MLA-Zitierstil (8. Ausg.)Não informado. Public Health Economics. University of Michigan, School of Public Health, 1944.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.